Hard Mathematics Chapter 1: Real Numbers Class 10 Level 8

संख्या 19600 का सही अभाज्य गुणनखंडन क्या है?

What is the correct prime factorisation of 19600?

Explanation opens after your attempt
Correct Answer

A. \(2^4\times5^2\times7^2\)

Step 1

Concept

Recognise \(19600=140^2\).

Step 2

Why this answer is correct

Since \(140=2^2\times5\times7\), \(19600=2^4\times5^2\times7^2\).

Step 3

Exam Tip

Check evenness of exponents in square numbers. चरण 1: \(19600=140^2\) पहचाना जा सकता है। चरण 2: \(140=2^2\times5\times7\), इसलिए \(19600=2^4\times5^2\times7^2\)। चरण 3: वर्ग संख्या में घातों की समता जांचें।

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What is the correct answer to this Mathematics MCQ?

The correct answer is A. \(2^4\times5^2\times7^2\).

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